The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Quakertown you will be able to figure out when to plant cleome.

Planting Calendar for Cleome

Frost tolerance for cleome:	Not tolerant of frost.
When to plant:	After the last frost.

Since cleome require warm weather it is important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant cleome in Quakertown is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant cleome and expect a good harvest is probably August. If you wait any later than that and your cleome may not have a chance to grow to maturity. If you are starting your cleome indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Quakertown the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Quakertown and it changes from year to year. Half of the time in Quakertown you get a frost after April 15 so always be ready to cover your cleome if you have a late frost.

USDA Zone Info for Quakertown

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Quakertown

You may be interested in your other planting guides for Quakertown.